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Finding the Fourth Proportional to 318,096.32, 439,075.08 and 203,683.01

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Solution

The fourth proportional to 318,096.32, 439,075.08 and 203,683.01 is: 281,147.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,096.32 : 439,075.08 = 203,683.01 : x
  2. Step 2: Convert to fraction form
    318,096.32/439,075.08 = 203,683.01/x
  3. Step 3: Cross multiply
    318,096.32x = 439,075.08 × 203,683.01
  4. Step 4: Simplify right side
    318,096.32x = 89,432,131,715.02
  5. Step 5: Solve for x
    x = 89,432,131,715.02/318,096.32
  6. Step 6: Final answer
    x = 281,147.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.